While my heart goes out to my fellow Vue'ers that are having this trouble, I am glad to hear that I am not the only one having this problem. It validates that it is indeed a problem that hopefully gebe can get e-on to look at. Since the undo seems to be a culprit, maybe that will give them enough info for a bug hunt for their next update. I hope so. I would be glad to work with support at e-on to find this bug out and stomp it. While I don't know their code obviously, being a programmer, I have a lot of experience on getting a scenario narrowed down.

Timoeteo,
Could you maybe elaborate on what POOF and CRASH means in your situation. Is it the same as Iloco and I are saying, or is it something different? Just wanting to know so we know whether it's two different bugs or the same one.

Also, it's not bizarre to have a program stop working from one session to the next. This can be caused by a whole lot of scenarios, not the least of which is a byte that was not read properly due to a small glitch in the HD surface, a bad shutdown where memory caches did not write properly to disk, a crash in an earlier session that corrupted a file that is needed to load, etc. I've had several programs over time that have stopped working for no reason. I'm not saying VuePro didn't do it to itself, I have no idea, my point is that it's really not as rare as it should be, that's all.

Antycon,
What operating system are you running? The reason I ask is because before I got win2K, I was constantly battling software and crashes. When I got Win2K, I've had a very stable system that ran that same software without a hitch. 98SE is notorious for it's memory management. Now on XP, I can't say. I bought it when it came out, and installed it, but it had so many bugs and driver issues back then, that I formatted the drive and reinstalled Win2K. I do plan to switch back up to it in the future, but I don't have a reason to as of yet, since Win2K does run fairly stable. The software I run generally has a 1% failure rate during usage (meaning it crashes), but VuePro has a 100% rate, so it's something seriously wrong there that shouldn't be. Yes, all software has bugs, but they are generally not to the point where the software is unusable by some. I dont mind slight annoyances, but downright crashing is serious stuff, especially after the price tag.

ShadowWind

PS: I doubt it's the piracy thing, but if it is, there is obviously a bug there so it's the same difference. It shouldn't be interfering with legal owners, which I am (bought all of my vue stuff, Vue 4, the vegetation pack, Vue Pro directly from e-On) and I am registered there.